2006 Lexus ES 330FACTORY OEM SERVICE PROCEDURE

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE - POWER WINDOW CONTROL SYSTEM

Problem symptom Suspected area
Window does not operate by driver's door power window master switch
  • 3. ECU-IG fuse
  • 4. PWR NO. 1 fuse
  • 5. Power window regulator master switch assy
  • 6. Power window regulator motor assy LH
  • 7. Wire harness
Window does not operate by passenger's door power window switch
  1. PWR NO. 2 fuse
  2. Power window regulator switch assy
  3. Power window regulator motor assy RH
  4. Wire harness
Window does not operate by rear LH door power window switch
  1. PWR NO. 3 fuse
  2. Power window regulator switch assy rear (LH side)
  3. Power window regulator motor assy LH
  4. Wire harness
Window does not operate by rear RH door power window switch
  1. PWR NO. 4 fuse
  2. Power window regulator switch assy rear (RH side)
  3. Power window regulator motor assy RH
  4. Wire harness
Window AUTO UP/DOWN does not operate by driver's power window master switch
  1. Power window regulator master switch assy
  2. Power window regulator motor assy LH (limit switch)
  3. Power window regulator motor assy LH (pulse sensor)
  4. Wire harness
Window AUTO UP/DOWN does not operate by passenger's door power window switch
  1. Power window regulator switch assy
  2. Power window regulator motor assy RH (limit switch)
  3. Power window regulator motor assy RH (pulse sensor)
  4. Wire harness
Window AUTO UP/DOWN does not operate by rear LH door power window switch
  1. Power window regulator switch assy rear (LH side)
  2. Power window regulator motor assy LH (limit switch)
  3. Power window regulator motor assy LH (pulse sensor)
  4. Wire harness
Window AUTO UP/DOWN does not operate by rear RH door power window switch
  1. Power window regulator switch assy rear (RH side)
  2. Power window regulator motor assy RH (limit switch)
  3. Power window regulator motor assy RH (pulse sensor)
  4. Wire harness
Window UP/DOWN of other door does not operate by power window master switch
  1. PWR NO. 1 fuse
  2. Power window regulator master switch assy
  3. Power window regulator switch assy
  4. Power window regulator switch assy rear (LH side)
  5. Power window regulator switch assy rear (RH side)
  6. Wire harness
Power window does not operate using ignition key
  1. Front door lock assy LH
  2. Power window regulator master switch assy
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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